CEN/TS 17766:2022
(Main)Organic and organo-mineral fertilizers - Extraction by water for subsequent determination of elements
General Information
- Abstract
This document specifies a method for the extraction by water for the subsequent determination of elements.
The extracts are suitable for analysis using CEN/TS 17774.
NOTE Alternatively, inductively coupled plasma mass spectrometry (ICP-MS) can be used for the measurement if the user proves that the method gives the same results.
The method is applicable to organic and organo-mineral fertilizers.
- Status
- Published
- Publication Date
- 05-Apr-2022
- Technical Committee
- CEN/TC 260 - Fertilizers and liming materials
- Drafting Committee
- CEN/TC 260/WG 8 - Organic and organo-mineral fertilizers
- Current Stage
- 9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
- Start Date
- 03-Jun-2025
- Completion Date
- 17-Sep-2026
Overview
CEN/TS 17766:2022 specifies a standardized method for the extraction of elements from organic and organo-mineral fertilizers using water. The extracted solutions are intended for subsequent elemental determination (for example by ICP-AES) and are compatible with analysis according to CEN/TS 17774. The method supports reproducible sample preparation for quality control, regulatory compliance and comparative testing across laboratories.
Key benefits: reproducibility, simple reagents (water), and direct compatibility with established instrumental techniques (ICP-AES; ICP-MS as an alternative when equivalence is demonstrated).
Key Topics
Scope and applicability
- Applies to organic and organo-mineral fertilizers.
- Designed to produce aqueous extracts suitable for elemental analysis.
Principle
- Extraction by shaking the test portion in water under defined conditions to solubilize target elements prior to instrumental determination.
Sampling and sample preparation
- Sampling and preparation should follow the principles of EN 1482 (all parts) with adaptations for organic and organo-mineral matrices.
Reagents and apparatus
- Reagent: distilled or demineralized water.
- Apparatus (examples):
- 500 ml graduated (e.g. Stohmann) flask
- Rotary shaker (35–40 turns per minute)
- Dry pleated, phosphate-free filter
Procedure (condensed)
- Weigh 5.000 g of the laboratory sample to the nearest 0.001 g into the graduated flask.
- Add 450 ml of water at 20 °C to 25 °C.
- Shake on the rotary shaker for 30 minutes.
- Make up to the mark with water, mix, and filter through a dry pleated filter.
- Extracts can be stored at (4 ± 3) °C for at least two days before determination.
Note: ICP-MS may be used as an alternative measurement technique if the user demonstrates equivalence with the prescribed method.
Applications
This technical specification is practical for:
- Laboratory quality control of organic and organo-mineral fertilizer batches.
- Preparatory extraction prior to elemental analysis by ICP-AES or validated ICP-MS.
- Routine compliance testing where an aqueous extraction is required to assess soluble element fractions.
Practical value includes simplified sample handling (water as reagent), reproducible extraction conditions, and direct integration with instrumental workflows for element quantification.
Related Standards
- EN 1482 (all parts) - sampling and sample preparation for fertilizers and liming materials.
- CEN/TS 17774 - determination of specific elements by ICP-AES after extraction by water (direct follow-up method for analysis).
This specification was approved by CEN for provisional application in 2022 and is intended to harmonize extraction practice for organic and organo-mineral fertilizers across member bodies.
Relations
- Effective Date
- 28-Jan-2026
- Referred By
CEN/TS 17777:2022 - Organic and organo-mineral fertilizers - Determination of specific elements - Effective Date
- 28-Jan-2026
- Effective Date
- 11-Jun-2025
Get Certified
Connect with accredited certification bodies for this standard
Control Union Certifications
Global certification for agriculture and sustainability.
ECOCERT
Organic and sustainability certification.
FSC International
Forest Stewardship Council certification.
Sponsored listings
Frequently Asked Questions
CEN/TS 17766:2022 is a technical specification published by the European Committee for Standardization (CEN). Its full title is "Organic and organo-mineral fertilizers - Extraction by water for subsequent determination of elements". This standard covers: This document specifies a method for the extraction by water for the subsequent determination of elements. The extracts are suitable for analysis using CEN/TS 17774. NOTE Alternatively, inductively coupled plasma mass spectrometry (ICP-MS) can be used for the measurement if the user proves that the method gives the same results. The method is applicable to organic and organo-mineral fertilizers.
This document specifies a method for the extraction by water for the subsequent determination of elements. The extracts are suitable for analysis using CEN/TS 17774. NOTE Alternatively, inductively coupled plasma mass spectrometry (ICP-MS) can be used for the measurement if the user proves that the method gives the same results. The method is applicable to organic and organo-mineral fertilizers.
CEN/TS 17766:2022 is classified under the following ICS (International Classification for Standards) categories: 65.080 - Fertilizers. The ICS classification helps identify the subject area and facilitates finding related standards.
CEN/TS 17766:2022 has the following relationships with other standards: It is inter standard links to CEN/TS 17774:2022, CEN/TS 17777:2022, FprEN 17766. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
CEN/TS 17766:2022 is associated with the following European legislation: EU Directives/Regulations: 2019/1009; Standardization Mandates: M/564. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
CEN/TS 17766:2022 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2023
Organska in organsko-mineralna gnojila - Ekstrakcija z vodo za določevanje
elementov
Organic and organo-mineral fertilizers - Extraction by water for subsequent determination
of elements
Organische und organisch-mineralische Düngemittel - Extraktion durch Wasser zur
anschließenden Bestimmung der Elemente
Engrais organiques et organo-minéraux - Extraction à l’eau pour le dosage ultérieur des
éléments
Ta slovenski standard je istoveten z: CEN/TS 17766:2022
ICS:
65.080 Gnojila Fertilizers
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
CEN/TS 17766
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
April 2022
TECHNISCHE SPEZIFIKATION
ICS 65.080
English Version
Organic and organo-mineral fertilizers - Extraction by
water for subsequent determination of elements
Engrais organiques et organo-minéraux - Extraction à Organische und organisch-mineralische Düngemittel -
l'eau pour le dosage ultérieur des éléments Extraktion durch Wasser zur anschließenden
Bestimmung der Elemente
This Technical Specification (CEN/TS) was approved by CEN on 13 March 2022 for provisional application.
The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.
CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 17766:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 4
5 Sampling and sample preparation . 4
6 Reagents . 4
7 Apparatus . 4
8 Procedure.
...